Mini Project

 Control Lamp 220v  With LDR

const int lamp = 12;

const int ldrPin=A0;

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x3F, 16, 2);

void setup() {

  Serial.begin(9600);

  pinMode(lamp , OUTPUT);

lcd.begin();

}

void loop() {

int ldrStatus=analogRead(ldrPin);

  delay(500);

  if(ldrStatus<=300){

  digitalWrite(12,HIGH);

lcd.setCursor(5,0);

    lcd.print("OPEN");

    delay(500);

    lcd.clear();

    delay(500);

}

else {

digitalWrite(12,LOW);

lcd.setCursor(5,1);

    lcd.print("CLOSE");

     delay(500);

      lcd.clear();

       delay(500);
}
}